Edit: I just reread your post and either I errored in you saying Vp160 for center, or you changed it.

Given your description, I'd go with 3 identical in-cabinet m80's. I was/am planning on a similar setup, but will probably go with 3 identical m60's because of the smallness of the room. Can do around 110 inch screen, but wouldn't leave room for speakers, except for the AT screen.

I have the in-cabinet vp160 mounted under my TV. it plays deeper than the M22's I have, but I can't vouch for how it sounds compared to a regular one.